Filter.



No. 640,665. Patented 1an. 2, |900.

J. n. KING.

FILTER.

(Application filed Oct. 19, 1899.)

(No Model.)

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Ntra@ JOHN D. KING, OF MOUNT STERLING, KENTUCKY, ASSIGNOR, BY MESNEASSIGNMENTS, OF ONE-HALF TO JAMES A. SHIRLEY, OF SAME PLACE.

FILTER.

SPECIFICATION forming part of Letters Patent No. 640,665, dated January2, 1900.

Application filed October 19, 1899. Serial No. 734,080. (No model.)

To @ZZ whom it may con/cern.-

Be it known that I, JOHN D. KING, a citizen of the United States,residing at Mount Sterling, in the county of Montgomery and State ofKentucky, have invented a new and useful Filter, of which the followingis a specification.

This invention relates to filters in general, and more particularly tothat class employed in connection with cisterns; and it has for itsobject to provide a construction in which the filtering material willnormally be drained and in which when the fiow of water to the filterbegins the drain will be closed, so that the water will pass through thefilter to the cistern or other receptacle.

A further object of the invention is to provide a filter in which thefiltering material will be automatically cleansed and in which allmoisture will be drained away to prevent freezing.

In the drawing forming a portion of this specification there is shown acentral vertical section taken through the filter and the automaticdrain apparatus. l

Referring now to the drawing, 5 represents the casing of the filter,which may be cylindrical in form, as shown, and of galvanized iron orother suitable material, the lower end 6 being depressed centrally toinsure the dow of water from the casing through the outlet-pipe 7. Asuitable cover 8 is removably placed upon the upper end of the casing 5.

Supported within the casing 5 and centrally thereof is a cylindricalvessel 9, the lower end of which is closed and within which is disposeda foraminous receptacle 10, which rests upon the bottom of the Vessel.In this receptacle 10 and at the bottom thereof is placed a layer ofgravel 11, and above this gravel is placed finely-divided charcoal 12.The upper end of the receptacle 10 fits snugly within the vessel 9 witha water-tight joint, and upon the upper end of the receptacle 10 isplaced a second receptacle 13, which fits closely wit-hin the vessel 9and has a filling 14 of gravel. The bottom of this receptacle 13 isperforated, as shown.

Above the receptacle 13 and resting upon the upper edge thereof is atopmost receptacle 15, the bottom of which is perforated and which has awire-gauze cover 16, beneath which is placed sponge 17.

An inlet-pipelS passes through the side of the casing 5 and through theside of the vessel 9, just above the bottom of the latter, to permit theiiow of water into the vessel. The water then iows upwardly through thematerials in the different receptacles and then outwardly over the topedge of the vessel 9 and passes outwardly into the casing 5, from whichit runs through the outlet-pipe 7.

Communicating with the inlet-pipe 18 is a stand-pipe 19, having avalve-seat 2O adjacent'its lower end, and into which stand-pipe the pipe18 opens above the valve-seat. A valve 21 is disposed to enter the seat2O and has a rod 22, which extends upwardly and through the stand-pipeto a point just below the upper end thereof, where it is connected witha lever 23, pivoted to the stand-pipe and provided with a movable weight24. The upper end of the stand-pipe 19, through which the rod 22 passes,is enlarged, as shown at 25, and the upper extremity 26 is flared orfunnel-shaped, the lever 23 being passed through a slot in the side ofthis flared portion and pivoted thereto.

l Arranged within the enlarged portion 25 of the stand-pipe andconcentric therewith is a bucket 27, through which the valve-rod 22 ispassed and to which rod the bucket is firmly secured. The lower end ofthe bucket is perforated, as shown.

The operation ofthe mechanism is as follows: The weight 24: beingproperly positioned to be overbalanced by the weight of the water at apredetermined height in the bucket 27, the water falling upon thescreen-cover 2S of the flared portion 26 passes inwardly and into thebucket 27. The perforations in the bottom of the bucket are of such asize as to permit only a gradual flow of water from the bucket, and thusthe bucket will fill under a very slight [iow of water. As soon as thewater in the bucket has reached a predetermined height, the bucket movesdownwardly and seats the valve 2l in the seat 20, thus cutting od theflow of water through the lower end of the stand-pipe, which is openednormally, the water accumulating in the stand-pipe and passing therefrominwardly and upwardlyr through the filtering material into the casing 5,and thence outwardly through the drain-pipe 7. lVhen the flow of Waterto the bucket 27 ceases, the bucket empties itself, when the Weight 24raises the valve 2l and opens the lower end of the stand-pipe, so thatall Water is drained from l. In a filter, the combination with a casingYhaving an outlet at the lower end thereof, of a Vessel disposed Withinand concentric with the casingr and separated from the Walls thereof byan interspace, a feraniinous receptacle Within the Vessel and separatedtherefrom by an intere pace extending part Wayof its height, saidreceptacle having a sill at its upper edge between it and the vessel,additional receptacles above the iirst-named receptacle, lteringmaterials in the Several receptacles, an inlet-pipe passed through theWalls of the caslng and communicating with the interspece between thevessel and the iirst-named reeeptacle adjacent the lower end of thelatter, a stand-pipe connected with the inlet-pipe, an oiitlet-valve inthe Stand-pipe below the inlet-pipe, a rod connected with the Valve andextending upwardly through the stand-pipe, and a perforated bucket fixedto the rod and adapted to receive Water in its passage to thestand-pipe, to close the valve.

2. In a filter, the combination with a casing, of a vessel disposedtherein and separated from the Walls thereof by an interspaee, aforaminous receptacle disposed within the Ves sel and separated from theWalls thereof by an interspace extending part Way of the height of thereceptacle, a sill between the upper portion of the receptacle and thewall of the vessel, filtering materials Within the receptaclc, aninlet-pipe passed through the wall of the casing and into the vesseladjacent the bottom thereof, a stand-pipe connected With the inlet-pipe,an outlet-valve in the standpipe belowthe inlet-pipe, a rod connectedwith the valve and extending; upwardly through the-stand-pipe, a leverpivoted to the stand-pipe and to the rod, a Weight upon the lever andadjustable thereon to Vary its counterbalancing effect, and a perforatedbucket upon the rod and adapted to receive Water in its passage to thestand-pipe, to close the valve.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the4 presence of two Witnesses.

JOHN D. KING.

Witnessesz JAMES BURKE, ,JOHN S. SMITH.

